Globally, ウィリアム (William 
, W. 
, Sr. 
) is a prevalent boy's first name. The first name ウィリアム is habitual in the United States, where it is a widespread male name, Nicaragua, where it is a common masculine name, and the United Kingdom (explore the name in all countries). In absolute terms, the name is most common in the United States, Brazil, and the United Kingdom. Much less frequently, ウィリアム is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| William | United Kingdom, Philippines, United States, Tanzania, Brazil |
| W. | Indonesia, United Kingdom, South Africa, United States, Brazil |
| Sr. | Indonesia, Kenya, Philippines, Nigeria, United States |
| ウィリアム | Japan |
Bill, Ghilherme, Goulielmos, Guglielmo, Guilhem, Guilherme, Guillaume, Guillem, Guillen, Guillerme, Guillermo, Guillén, Gulielmus, Gwilherm, Gwilym, Gwyllym, Morad, Murad, Uilyam, Uiriamu, Vilem, Vilhelm, Vilhelmo, Vilho, Viliamu, Vilijam, Viljam, Viljami, Viljams, Viljem, Viljo, Vilmos, Vilyam, Vilém, Wai-Lim, Wei-Lian, Wei-Lien, Wilhelm, Wilhelm Carl, Wiliam, Wiliamu, Will, Willem, William', Williams, Willie, Wiremu, Wiriam, Wm., Μπιλ,
ウィリアム is also a prevalent name for the fictitious and mythical characters: William Tell , the folk hero of Switzerland; Captain Marvel , the fictional DC character, Batman: The Brave and the Bold; William Riker , the fictional character in Star Trek; Buck Rogers , the science fiction hero, Amazing Stories and Mr William Collins , the fictional character from Pride and Prejudice by Jane Austen, Pride & Prejudice, and in many other works.
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ウィリアム・ヴァーベック American military general (1861-1930), JP (b. 1861) |
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| ウィリアム・マーシャル JP (b. 1827) |
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ウィリアム・レーガン・ゴーハム Japanese engineer, US (b. 1888) |
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| ポープ・ウィリアム Japanese association football player, JP (b. 1994) |
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